Your symptoms are related to the Acute Gastroenteritis
that can cause all such syptoms.
You should take medicines for that.
1. An antibiotic such as ciprofloxacin
500 mg twice daily for 05 days.
2. An antacid such as Esomepreazole which is PPI that ca reduce you symptoms of Heartburn
and nausea. It can be taken 40 mg in the morning before breakfast. If you have symptoms than take 40 mg in the evening before dinner.
3. An antiemetic such as Tab. Gravinate that can be taken before meals if you have symptoms of nausea.
4. If you have fever than use Tab. Paracetamol
500 mg thrice daily. If fever is cured than stop that.
Take soft diet
for a period of three days and avoid chillies and fried food
I hope I am sucessful in solving your query If you have further you can ask me.
Dr. Azhar Sattar